In 1959 George Lucas started working as a longshore laborer and clerk at various San Francisco Bay-area piers where ships were loaded and unloaded with cargo.
Reportedly during his breaks, he would venture into the ship’s engine rooms to stay warm. Often, employees of shipyard contractor Triple A Machine Shop Inc. were in the same engine rooms removing and replacing asbestos-containing insulation, gaskets and packing.
The work that he was doing exposed him to substantial amounts of asbestos dust. His bystander exposure from Triple A employees’ work continued until 1986.